<input id="keymap-usage" type="text" tiText size="50" (keypress)="onKeypress($event)" />
<div class="current-value-container">
  <p class="my-3 f14">Current Keymap information：</p>
  <p class="my-3 f14">{{ charCode }}</p>
  <p class="my-3 f14">{{ charStr }}</p>
  <p class="my-3 f14">{{ keyCode }}</p>
  <p class="my-3 f14">{{ keypressStr }}</p>
</div>
